CSharpSetMemberBinder
using Microsoft.CSharp.RuntimeBinder.Semantics;
using System;
using System.Collections.Generic;
using System.Dynamic;
using System.Numerics.Hashing;
namespace Microsoft.CSharp.RuntimeBinder
{
internal sealed class CSharpSetMemberBinder : SetMemberBinder, ICSharpBinder
{
private readonly CSharpArgumentInfo[] _argumentInfo;
private readonly RuntimeBinder _binder;
private readonly Type _callingContext;
public BindingFlag BindingFlags => (BindingFlag)0;
public bool IsBinderThatCanHaveRefReceiver => false;
internal bool IsCompoundAssignment { get; }
private bool IsChecked => _binder.IsChecked;
public Expr DispatchPayload(RuntimeBinder runtimeBinder, ArgumentObject[] arguments, LocalVariableSymbol[] locals)
{
return runtimeBinder.BindAssignment(this, arguments, locals);
}
public void PopulateSymbolTableWithName(Type callingType, ArgumentObject[] arguments)
{
SymbolTable.PopulateSymbolTableWithName(base.Name, null, arguments[0].Type);
}
CSharpArgumentInfo ICSharpBinder.GetArgumentInfo(int index)
{
return _argumentInfo[index];
}
public CSharpSetMemberBinder(string name, bool isCompoundAssignment, bool isChecked, Type callingContext, IEnumerable<CSharpArgumentInfo> argumentInfo)
: base(name, false)
{
IsCompoundAssignment = isCompoundAssignment;
_argumentInfo = BinderHelper.ToArray(argumentInfo);
_callingContext = callingContext;
_binder = new RuntimeBinder(callingContext, isChecked);
}
public int GetGetBinderEquivalenceHash()
{
int h = _callingContext?.GetHashCode() ?? 0;
if (IsChecked)
h = HashHelpers.Combine(h, 1);
if (IsCompoundAssignment)
h = HashHelpers.Combine(h, 1);
h = HashHelpers.Combine(h, base.Name.GetHashCode());
return BinderHelper.AddArgHashes(h, _argumentInfo);
}
public bool IsEquivalentTo(ICSharpBinder other)
{
CSharpSetMemberBinder cSharpSetMemberBinder = other as CSharpSetMemberBinder;
if (cSharpSetMemberBinder == null)
return false;
if (base.Name != cSharpSetMemberBinder.Name || _callingContext != cSharpSetMemberBinder._callingContext || IsChecked != cSharpSetMemberBinder.IsChecked || IsCompoundAssignment != cSharpSetMemberBinder.IsCompoundAssignment || _argumentInfo.Length != cSharpSetMemberBinder._argumentInfo.Length)
return false;
return BinderHelper.CompareArgInfos(_argumentInfo, cSharpSetMemberBinder._argumentInfo);
}
public override DynamicMetaObject FallbackSetMember(DynamicMetaObject target, DynamicMetaObject value, DynamicMetaObject errorSuggestion)
{
BinderHelper.ValidateBindArgument(target, "target");
BinderHelper.ValidateBindArgument(value, "value");
return BinderHelper.Bind(this, _binder, new DynamicMetaObject[2] {
target,
value
}, _argumentInfo, errorSuggestion);
}
string get_Name()
{
return base.Name;
}
string ICSharpBinder.get_Name()
{
return this.get_Name();
}
}
}